debuggingfuture/awk_first_column_from_file.sh

## awk_first_column_from_file.sh
//print only first column from space separated file using awk
cat input.ssv | awk '{print $1}'

## awk_first_column_from_file_csv.sh
//print only first column from comma separated file using awk
cat input.csv | awk 'BEGIN {FS=","}{print $1}'

## input.csv

          
            a
            b
            c

            
              d
              e
              f

            
              h
              i
              j

## input.ssv
a b c
d e f
h i j
	//print only first column from space separated file using awk
	cat input.ssv \| awk '{print $1}'
	//print only first column from comma separated file using awk
	cat input.csv \| awk 'BEGIN {FS=","}{print $1}'